Hadfield, the first Canadian to walk in space, left Earth on December 19, 2012, and has spent five month aboard the ISS.

But his tour has not been without incident, including an emergency spacewalk on the weekend to fix an ammonia leak.

Hadfield is due to return to Earth later this week aboard a Russian Soyuz space capsule that will land in Kazakhstan.

The 53-year-old former fighter pilot has become something of an internet sensation during his time in space, posting a series of pictures and videos from the ISS. Among them was a lesson in space station cooking.

He’s also got 775,000 followers on Twitter, thanks to his string of social media updates from the ISS.